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35 lines
1 KiB
Python
35 lines
1 KiB
Python
from http import HTTPStatus
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from urllib.parse import urlencode
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import time
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import yaml
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import aiohttp
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config = yaml.safe_load(open('../config.yaml', 'r', encoding='utf-8'))
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async def create_chart(
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from_currency: str,
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conv_currency: str,
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period: str,
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backend: str) -> (str, None):
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params = {
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'from_currency': from_currency,
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'conv_currency': conv_currency,
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'period': period,
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'backend': backend,
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'time_unique': time.time()
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}
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# Without time_unqiue Telegram does not want to load the image
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# Probably because of some kind of caching, but it's disabled.
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base_url = f'{config["kekkai_instance"]}/api/getChart/'
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query_string = urlencode(params)
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full_url = f'{base_url}?{query_string}'
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async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=3)) as session:
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async with session.get(full_url) as res:
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if not HTTPStatus(res.status).is_success:
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return None
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return full_url
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